A simple procedure to improve the explicit integration of Cam-Clay models

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• 作者：Gema De la Morena ; Laura Asensio ; ^{laura.asensio@uclm.es" class="auth_mail" title="E-mail the corresponding author} ; Vicente Navarro ; Á ; ngel Yustres
• 关键词：CCm ; Cam-Clay model ; MCCm ; modified Cam-Clay model ; NRMSE ; normalized root-mean-square error ; RE ; relative error ; RMSE ; root-mean-square error
• 刊名：Computers and Geotechnics
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：81
• 期：Complete
• 页码：207-211
• 全文大小：873 K

文摘

A simple procedure is proposed to reduce the error in the calculation of the stresses when simulating stress paths applying explicit stress integration schemes in Cam-Clay models with an associated flow rule. The procedure consists of defining the value of the preconsolidation stress (the hardening parameter of a Cam-Clay model) so that the drift of the yield surface is zero at each calculation step. The results demonstrate the efficiency of the proposed procedure, especially along softening paths. The method can easily be implemented in existing explicit integration modules, which facilitates its practical application.